SIP SS7 gateways - VoIP-Info

SIP <-> SS7 Gateways

SS7 (or C7) is the main signalling for PSTN interconnections. How do we interface between a SS7 network and a SIP network?

SIP to SS7 Gateway from Terratel The signaling converter allows to combine systems that use different signaling protocols (SS7, PRI EDSS1, V5.2, V5.1, R2D, CAS, SIP) into a unified telecommunications network. Effective integration TDM to NGN and IMS networks.
SmartNode 10k SIP-SS7 Gateways from Patton scale from 120 to 32,000 calls. Offers T1/E1, DS3, and STM-1 interfaces and connects your SS7 edge, core and peer zones with emerging H.323 and SIP networks to facilitate your long-term migration plans.
SS7 to SIP Solutions Scalable SS7 to SIP Signaling Gateway Solutions from Teleprime Advanced Communications Division
Cosmos SS7-SIP Gateway Turn-key, high performance SS7/C7 solution from Cosmact. Scales from 1E1 to 64E1 per chassis. Supports single point code across multiple chassis. Flexible built in routing/digit manipulation rules for SS7/SIP conversion.
Verisign offers a SIP to SS7 interconnection service.

Dialogic has an integrated media and signalling VoIP gateway that supports SS7, PRI and CAS for PSTN with SIP and H.323 for IP. IMG1010. Dialogic BorderNet 500 Gateways Provides flexibility in connecting to a wide variety of services and equipment, including SIP trunks, PSTN trunks, and legacy, hybrid, and IP PBXs.
OpenCloud Inter-Network Gateways – IP to IN and IN to IP translators

“Integration of SIP & SS7 for VoIP: Opportunities and Challenges” by James Rafferty at Cantata Technology. SIP Magazine March 2007